J. Phys. I France
Volume 6, Numéro 12, December 1996
Page(s) 2121 - 2133
DOI: 10.1051/jp1:1996207
J. Phys. I France 6 (1996) 2121-2133

Dielectric Susceptibility of Quasi One-Dimensional Charge and Spin Density Wave Conductors at Low Temperatures

P. Monceau1 and F. Nad1, 2

1  Centre de Recherches sur les Très Basses Températures associated with University Joseph Fourier, UPR 5001 CNRS, BP 166, 38042 Grenoble Cedex 9, France
2  Institute of Radioengineering and Electronics, Russian Academy of Sciences, Mokhovaya 11, 103907 Moscow, Russia

(Received 12 July 1996, revised 29 July 1996, accepted 19 August 1996)

We present a short review on dielectric susceptibility properties of quasi one-dimensional charge and spin density waves. Emphasis is made on new features we have observed in recent measurements performed at very low frequencies and at low temperatures: a critical slowing down of the real part of the dielectric susceptibility towards a temperature $T_{\rm g}$ and the bifurcation between two relaxation time processes near $T_{\rm g}$. We interpret these data as resulting from a transition of the charge and the spin density wave into a glassy-like state.

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